About 11:30 a.m., the Lincoln Police Department took a statement from a young man who said the school would blow at noon, according to police and the Western Placer Unified School District.

After reporting the threat to the school district, Lincoln police and district officials responded -- deciding it would be best to evacuate students to a nearby football field.

Friday afternoon, police and officials searched the whole school because no specific bomb location was provided.

The search was completed by 3 p.m., and no explosive devices were found, district officials said.

School was dismissed early.

District officials said there were some long wait times for parents picking up their students, because in addition to the 1,500 students who attend Lincoln High School, there were also third-graders and middle-schoolers on campus for a science fair.

A plan for picking up students in a more efficient manner in the future will be discussed during a debriefing on the incident, the district said.